:root{--font-family:"Inter", system-ui, Avenir, Helvetica, Arial, sans-serif;--glass-bg:#ffffff40;--glass-border:#ffffff59;--glass-shadow:0 12px 40px 0 #00000080;--text-primary:#1e293b;--text-secondary:#1e293bbf;--banner-bg:linear-gradient(135deg, #2da09b8c 0%, #dc9b6473 50%, #ffffff59 100%);--banner-wrapper-bg:#ffffff1f;--banner-glow:radial-gradient(circle, #2da09b59 0%, #0000 70%);--banner-icon-bg:#ffffff40;--banner-icon-border:#fff6;--banner-icon-color:#1a8a85;--banner-icon-hover-color:#0d6e6a;--cal-bg:#ffffffeb;--cal-border:#2da09b59;--cal-shadow:0 25px 60px #0000004d, 0 0 30px #2da09b26;--cal-text:#1e293b;--cal-text-muted:#1e283c8c;--cal-today-border:#2da09bb3;--cal-today-color:#0d9488;--cal-selected-bg:linear-gradient(135deg, #0d9488, #0f766e);--cal-selected-shadow:0 4px 12px #0d948866;--cal-input-bg:#0000000f;--cal-input-border:#00000026;--cal-input-color:#1e293b;--cal-divider:#00000014;--cal-nav-bg:#0000000d;--cal-nav-border:#0000001a;--cal-nav-hover-bg:#0000001a;--cal-nav-hover-color:#0d9488;--cal-day-color:#334155;--cal-day-hover-bg:#0000000f}*{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;max-width:100vw;overflow-x:hidden}body{font-family:var(--font-family);color:var(--text-primary);min-height:100dvh;text-shadow:none;font-weight:600}.glass-panel{background:var(--glass-bg);-webkit-backdrop-filter:blur(80px)saturate(1.2);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);border-radius:24px}.glass-nav{-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);z-index:100;background:#14141466;position:sticky;top:0}.app-container{background-image:url(/bg.jpg);background-position:50%;background-size:cover;background-attachment:fixed;flex-direction:column;min-height:100dvh;transition:background-image .3s;display:flex}.main-content{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:3rem 2rem}h1{text-shadow:none;margin-bottom:1rem;font-size:3.5rem;font-weight:800;line-height:1.2}h2,h3,h4,h5,h6{text-shadow:none;margin-bottom:1.5rem;font-weight:800}h2{font-size:2rem}p{color:var(--text-secondary);text-shadow:none;font-size:1.15rem;font-weight:600;line-height:1.6}.btn-oil{color:var(--text-primary);cursor:pointer;-webkit-backdrop-filter:blur(12px);background:#f9731666;border:1px solid #f97316b3;border-radius:50px;padding:12px 28px;font-size:1.1rem;font-weight:600;transition:all .3s cubic-bezier(.175,.885,.32,1.275);box-shadow:0 4px 15px #f9731626}.btn-oil:hover{background:#f9731699;border-color:#f97316e6;transform:scale(1.05)translateY(-2px);box-shadow:0 8px 25px #f9731640}.btn-oil:active{transform:scale(.95)}.btn-gold{color:#fbbf24;cursor:pointer;box-sizing:border-box;-webkit-backdrop-filter:blur(20px);background:#140a05bf;border:1px solid #f59e0b8c;border-radius:50px;justify-content:center;align-items:center;padding:.8rem 1.5rem;font-size:1rem;font-weight:600;transition:all .3s;display:inline-flex;box-shadow:0 4px 15px #0000004d}.btn-gold:hover{background:#f59e0b4d;border-color:#f59e0bd9;transform:translateY(-2px);box-shadow:0 8px 25px #f59e0b59}.segmented-control-global{background:var(--glass-bg);-webkit-backdrop-filter:blur(32px);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);border-radius:100px;flex-wrap:wrap;gap:.5rem;padding:.5rem;display:flex}.segmented-btn-global{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:100px;align-items:center;gap:.5rem;padding:.75rem 1.25rem;font-size:.95rem;font-weight:500;transition:all .3s cubic-bezier(.16,1,.3,1);display:flex}.segmented-btn-global:hover{color:var(--text-primary);background:#ffffff1a}.segmented-btn-global.active{color:var(--text-primary);text-shadow:0 1px 2px #00000026;background:#ffffff40;box-shadow:0 4px 15px #0000001a,inset 0 0 0 1px #ffffff4d}.empty-state-global{text-align:center;background:var(--glass-bg);-webkit-backdrop-filter:blur(32px);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);border-radius:16px;flex-direction:column;justify-content:center;align-items:center;padding:4rem 2rem;display:flex}.empty-icon-global{width:80px;height:80px;color:var(--text-secondary);background:#ffffff26;border:1px solid #fff3;border-radius:50%;justify-content:center;align-items:center;margin-bottom:1.5rem;display:flex}.empty-msg-global{color:var(--text-secondary);text-shadow:none;margin:0;font-size:1.1rem}.btn-glass{background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--text-primary);cursor:pointer;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:50px;padding:10px 24px;font-size:1rem;font-weight:500;transition:all .2s}.btn-glass:hover{background:#ffffff40;transform:translateY(-1px)}.modal-backdrop{-webkit-backdrop-filter:blur(8px);z-index:1000;background:#0000008c;justify-content:center;align-items:center;width:100vw;height:100dvh;animation:.25s ease-out modalBackdropFadeIn;display:flex;position:fixed;top:0;left:0}@keyframes modalBackdropFadeIn{0%{opacity:0}to{opacity:1}}.modal-content{width:420px;max-width:92vw;padding:2.5rem;animation:.3s cubic-bezier(.16,1,.3,1) modalContentIn;position:relative}@keyframes modalContentIn{0%{opacity:0;transform:translateY(20px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.close-btn{color:#ffffffb3;cursor:pointer;background:#ffffff14;border:1px solid #ffffff26;border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;transition:all .2s;display:flex;position:absolute;top:1rem;right:1rem}.close-btn:hover{color:#fca5a5;background:#ef44444d;border-color:#ef444480;transform:rotate(90deg)}.glass-input{color:#f8fafc;box-sizing:border-box;width:100%;font-size:.95rem;font-weight:500;font-family:var(--font-family);background:#ffffff14;border:1px solid #ffffff2e;border-radius:12px;outline:none;padding:.75rem 1rem;transition:all .25s}.glass-input::placeholder{color:#fff6;font-weight:400}.glass-input:focus{background:#ffffff1f;border-color:#f9731699;box-shadow:0 0 0 3px #f973161f}select.glass-input{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.5)' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-position:right .8rem center;background-repeat:no-repeat;padding-right:2.2rem}select.glass-input option{color:#f1f5f9;background:#1e293b}.glass-textarea{resize:vertical;min-height:60px;font-family:inherit}.w-full{width:100%}.mt-4{margin-top:1rem}@media (width<=768px){.main-content{padding:1.5rem 1rem}h1{font-size:2.2rem}h2{font-size:1.5rem}.glass-panel{border-radius:16px}.modal-content{width:95vw;padding:1.5rem}.btn-oil{padding:10px 20px;font-size:1rem}.app-container{background-attachment:scroll}}.nav-container{justify-content:space-between;align-items:center;max-width:1600px;margin:0 auto;padding:1rem 3rem;display:flex}.logo{letter-spacing:-.5px;color:var(--text-primary);font-size:1.5rem;font-weight:800;transition:color .3s}.logo-dot{color:#ea580c}.nav-links{align-items:center;gap:2rem;display:flex}.nav-link{color:var(--text-secondary);padding:4px 0;font-size:.95rem;font-weight:500;text-decoration:none;transition:color .2s,opacity .2s;background:0 0!important;border:none!important}.nav-link:hover,.nav-link.active{color:var(--text-primary);font-weight:600;background:0 0!important}.nav-links .btn-glass,.btn-nav-teacher,.lang-toggle{box-sizing:border-box;border-radius:50px;justify-content:center;align-items:center;height:38px;padding:0 16px;font-size:.95rem;font-weight:500;display:inline-flex}.btn-nav-teacher{color:#fbbf24;cursor:pointer;background:0 0;border:1px solid #f59e0b66;transition:all .2s}.btn-nav-teacher:hover{background:#f59e0b33}.btn-nav-teacher--active{background:#f59e0b40!important;border-color:#f59e0b!important}.btn-nav-active{background:#f59e0b4d;border-color:#f59e0b}.btn-become-teacher{color:#fbbf24}.btn-become-teacher:hover{background:#f59e0b33}.custom-lang-dropdown{align-items:center;display:flex;position:relative}.lang-toggle{cursor:pointer;background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--text-primary);gap:.5rem;transition:all .2s}.lang-toggle:hover{background:#0000000d}.teacher-mode .lang-toggle:hover{background:#ffffff1a}.lang-toggle .chevron{width:16px;height:16px;transition:transform .2s}.lang-toggle .chevron.open{transform:rotate(180deg)}.lang-menu{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--glass-border);z-index:100;border-radius:8px;flex-direction:column;min-width:80px;padding:.25rem;display:flex;position:absolute;top:calc(100% + 5px);right:0;box-shadow:0 4px 12px #0000001a}.lang-option{cursor:pointer;color:var(--text-secondary);text-align:center;border-radius:4px;padding:.5rem 1rem;font-weight:500;transition:all .2s}.lang-option:hover{color:var(--text-primary);background:#0000000d}.teacher-mode .lang-option:hover{background:#ffffff1a}.user-controls{align-items:center;gap:1rem;display:flex}.user-email{color:var(--text-secondary);font-size:.95rem;font-weight:500}.hamburger{cursor:pointer;color:var(--text-primary);z-index:101;display:none}@media (width<=768px){.nav-container{padding:1rem}.hamburger{align-items:center;display:flex}.nav-links{-webkit-backdrop-filter:blur(40px);z-index:100;opacity:0;pointer-events:none;background:#fffffff2;flex-direction:column;justify-content:center;align-items:center;gap:2rem;width:100vw;height:100dvh;transition:transform .3s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;top:0;left:0;transform:translateY(-100%)}.nav-links.mobile-open{opacity:1;pointer-events:all;transform:translateY(0)}.nav-link{font-size:1.5rem}.user-controls{flex-direction:column;align-items:center;gap:1.5rem}.lang-menu{top:unset;bottom:calc(100% + 5px)}}.auth-backdrop{-webkit-backdrop-filter:blur(32px);z-index:10000;background:#00000080;justify-content:center;align-items:center;width:100vw;height:100dvh;animation:.25s ease-out authBackdropIn;display:flex;position:fixed;top:0;left:0}@keyframes authBackdropIn{0%{opacity:0}to{opacity:1}}.auth-modal{-webkit-backdrop-filter:blur(40px)saturate(1.4);background:#fffffffa;border:1px solid #fffc;border-radius:24px;width:420px;max-width:92vw;padding:2.5rem 2.25rem 2rem;animation:.3s cubic-bezier(.16,1,.3,1) authModalIn;position:relative;box-shadow:0 25px 60px #00000040,0 0 40px #0d948814,inset 0 1px #fffc}@keyframes authModalIn{0%{opacity:0;transform:translateY(20px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.auth-close-btn{color:#00000073;cursor:pointer;background:#0000000d;border:1px solid #0000001a;border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;transition:all .2s;display:flex;position:absolute;top:1rem;right:1rem}.auth-close-btn:hover{color:#dc2626;background:#ef444426;border-color:#ef44444d;transform:rotate(90deg)}.auth-header{text-align:center;margin-bottom:2rem}.auth-icon-badge{color:#0d9488;background:linear-gradient(135deg,#0d948833,#0f766e1f);border:1px solid #0d948859;border-radius:18px;justify-content:center;align-items:center;width:64px;height:64px;margin:0 auto 1.25rem;display:flex;box-shadow:0 8px 20px #0d94881f}.auth-title{color:#1e293b;text-shadow:none;margin:0 0 .5rem;font-size:1.6rem;font-weight:800}.auth-subtitle{color:#1e293b8c;text-shadow:none;margin:0;font-size:.92rem;font-weight:500}.auth-form{flex-direction:column;gap:.85rem;display:flex}.auth-input-group{width:100%;position:relative}.auth-input-icon{color:#1e293b4d;pointer-events:none;transition:color .2s;position:absolute;top:50%;left:1rem;transform:translateY(-50%)}.auth-input-group:focus-within .auth-input-icon{color:#0d9488}.auth-input{color:#1e293b;box-sizing:border-box;background:#0000000a;border:1px solid #0000001f;border-radius:14px;outline:none;width:100%;padding:.85rem 1rem .85rem 3rem;font-size:.95rem;font-weight:500;transition:all .25s}.auth-input::placeholder{color:#1e293b59;font-weight:400}.auth-input:focus{background:#fff9;border-color:#0d94888c;box-shadow:0 0 0 3px #0d94881f}.auth-submit-btn{color:#fff;cursor:pointer;width:100%;text-shadow:none;background:linear-gradient(135deg,#0d9488,#0f766e,#115e59);border:none;border-radius:14px;justify-content:center;align-items:center;gap:.5rem;margin-top:.5rem;padding:.85rem 1.5rem;font-size:1rem;font-weight:700;transition:all .3s cubic-bezier(.175,.885,.32,1.275);display:flex;box-shadow:0 6px 20px #0d94884d}.auth-submit-btn:hover{background:linear-gradient(135deg,#14b8a6,#0d9488,#0f766e);transform:translateY(-2px);box-shadow:0 10px 30px #0d948873}.auth-submit-btn:active{transform:translateY(0)scale(.98)}.auth-divider{align-items:center;gap:1rem;margin:1.5rem 0 1rem;display:flex}.auth-divider-line{background:#0000001a;flex:1;height:1px}.auth-divider-text{color:#1e293b66;text-transform:lowercase;font-size:.8rem;font-weight:500}.auth-toggle-btn{color:#1e293bb3;cursor:pointer;text-align:center;background:#0000000a;border:1px solid #0000001a;border-radius:14px;width:100%;padding:.7rem;font-size:.92rem;font-weight:600;transition:all .25s}.auth-toggle-btn:hover{color:#1e293b;background:#00000014;border-color:#0000002e;transform:translateY(-1px)}@media (width<=480px){.auth-modal{border-radius:20px;padding:2rem 1.5rem 1.5rem}.auth-title{font-size:1.35rem}.auth-icon-badge{border-radius:14px;width:52px;height:52px}}.hero-section{justify-content:center;align-items:center;padding:4rem 0;display:flex}.hero-content{text-align:center;box-sizing:border-box;width:100%;max-width:800px;padding:4rem}.hero-content p{max-width:600px;margin-bottom:2.5rem;margin-left:auto;margin-right:auto;font-size:1.25rem}.hero-buttons{flex-wrap:wrap;justify-content:center;gap:1rem;display:flex}@media (width<=640px){.hero-section{padding:2rem 0}.hero-content{padding:2rem 1.25rem}.hero-content h1{font-size:2rem;line-height:1.2}.hero-content p{margin-bottom:1.75rem;font-size:1.05rem}.hero-buttons{flex-direction:column;gap:.75rem}.hero-buttons button,.hero-buttons a{width:100%}}.features-section{text-align:center;max-width:1000px;margin:0 auto;padding:4rem 2rem}.features-header h2{color:var(--text-primary);margin-bottom:.5rem;font-size:2.5rem}.features-header p{color:var(--text-secondary);margin-bottom:3rem;font-size:1.2rem}.features-arena{width:100%;height:500px;margin:0 auto;position:relative}.deck-base{cursor:pointer;z-index:0;border:2px dashed #ffffff4d;border-radius:15px;justify-content:center;align-items:center;width:260px;height:340px;display:flex;position:absolute;top:50%;left:25%;transform:translate(-50%,-50%)}.pulse-text{color:var(--text-secondary);pointer-events:none;font-weight:500;animation:2s infinite pulse}@keyframes pulse{0%{opacity:.5;transform:scale(.95)}50%{opacity:1;transform:scale(1.05)}to{opacity:.5;transform:scale(.95)}}.deck-cover-instruction{z-index:50;cursor:pointer;-webkit-backdrop-filter:blur(12px);background:#fffffff2;border:1px solid #ffffff80;border-radius:15px;justify-content:center;align-items:center;width:260px;height:340px;display:flex;position:absolute;top:50%;left:25%;transform:translate(-50%,-50%)}.pulse-instruction{color:var(--text-primary);pointer-events:none;text-align:center;border:1px solid var(--glass-border);background:#0000000d;border-radius:30px;padding:12px 24px;font-size:1.1rem;font-weight:700;animation:2s infinite pulse}.teacher-mode .pulse-instruction{background:#ffffff1a}.feature-card{text-align:center;-webkit-backdrop-filter:blur(12px);flex-direction:column;justify-content:center;align-items:center;width:260px;height:340px;padding:2rem;transition:all .6s cubic-bezier(.34,1.56,.64,1);display:flex;position:absolute;box-shadow:0 10px 30px #0000004d;background:#fffffff2!important}.feature-card.in-deck{cursor:pointer}.feature-card.in-deck:hover{filter:brightness(1.1);box-shadow:0 15px 40px #0006}.feature-icon{filter:drop-shadow(0 4px 6px #0003);margin-bottom:1rem;font-size:4rem}.feature-card h3{color:var(--text-primary);margin-bottom:.5rem;font-size:1.3rem}.feature-card p{color:var(--text-secondary);font-size:.95rem;line-height:1.4}@media (width<=768px){.features-arena{height:1200px}.deck-base,.deck-cover-instruction,.feature-card.in-deck{top:12%!important;left:50%!important;transform:translate(-50%,-50%)scale(.85)!important}.feature-card.dealt{left:50%!important;transform:translate(-50%,-50%)scale(.85)!important}.feature-card.dealt:nth-child(2){top:32%!important}.feature-card.dealt:nth-child(3){top:54%!important}.feature-card.dealt:nth-child(4){top:76%!important}.feature-card.dealt:nth-child(5){top:98%!important}}.how-to-use{text-align:center;max-width:1200px;margin:0 auto;padding:4rem 2rem;position:relative}.how-to-use h2{color:var(--text-primary);margin-bottom:.5rem;font-size:2.5rem}.howto-subtitle{color:var(--text-secondary);margin-bottom:3rem;font-size:1.2rem}.carousel-container{align-items:center;display:flex;position:relative}.carousel-track{scroll-snap-type:x mandatory;scroll-behavior:smooth;-ms-overflow-style:none;scrollbar-width:none;gap:1.5rem;padding:1rem 2rem;display:flex;overflow-x:auto}.carousel-track::-webkit-scrollbar{display:none}.carousel-btn{width:50px;height:50px;color:var(--text-primary);cursor:pointer;z-index:2;-webkit-backdrop-filter:blur(5px);background:#fff3;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:2rem;transition:all .3s;display:flex;position:absolute;box-shadow:0 4px 6px #0000001a}.carousel-btn:hover{background:#fff6;transform:scale(1.1)}.carousel-btn.left{left:-25px}.carousel-btn.right{right:-25px}.step-card{scroll-snap-align:center;text-align:center;background:var(--glass-bg);-webkit-backdrop-filter:blur(24px);border:1px solid var(--glass-border);min-width:280px;max-width:280px;box-shadow:none;border-radius:24px;flex-direction:column;align-items:center;padding:2rem;transition:transform .3s,box-shadow .3s;display:flex}.step-card:hover{background:#ffffff59;transform:translateY(-10px);box-shadow:0 15px 30px #00000026}.step-icon-svg{filter:drop-shadow(0 4px 6px #0003);width:80px;height:80px;margin-bottom:1.5rem}.step-number{background:var(--glass-border);text-transform:uppercase;letter-spacing:1px;color:var(--text-primary);border-radius:20px;margin-bottom:1rem;padding:4px 12px;font-size:.8rem;font-weight:700}.step-card h4{color:var(--text-primary);margin-bottom:.8rem;font-size:1.3rem}.step-card p{color:var(--text-secondary);font-size:.95rem;line-height:1.5}@media (width<=768px){.carousel-btn{display:none}.carousel-track{padding:1rem}}.course-card{background:var(--glass-bg,#ffffff40);border:1px solid var(--glass-border,#ffffff59);-webkit-backdrop-filter:blur(32px);box-shadow:var(--glass-shadow,0 12px 40px #00000080);border-radius:16px;flex-direction:column;transition:transform .3s cubic-bezier(.16,1,.3,1),box-shadow .3s,border-color .3s;display:flex;position:relative;overflow:hidden}.course-card:hover{border-color:#ffffff73;transform:translateY(-6px);box-shadow:0 20px 45px -10px #0009,0 0 20px #3b82f626}.course-completed{border-color:#10b98166}.course-completed:hover{box-shadow:0 20px 40px -15px #00000080,0 0 20px #10b98133}.course-card-image-wrapper{background:var(--banner-wrapper-bg,#ffffff1f);border-bottom:1px solid var(--glass-border,#ffffff14);width:100%;height:130px;position:relative;overflow:hidden}.course-card-bg-image{object-fit:cover;width:100%;height:100%;transition:transform .5s}.course-card:hover .course-card-bg-image{transform:scale(1.05)}.course-card-fallback-banner{background:var(--banner-bg);justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:relative;overflow:hidden}.banner-ambient-glow{background:var(--banner-glow);pointer-events:none;border-radius:50%;width:120px;height:120px;position:absolute}.banner-icon-badge{background:var(--banner-icon-bg);border:1px solid var(--banner-icon-border);width:52px;height:52px;color:var(--banner-icon-color);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:14px;justify-content:center;align-items:center;transition:transform .3s,color .3s;display:flex;box-shadow:0 8px 16px #00000026}.course-card:hover .banner-icon-badge{color:var(--banner-icon-hover-color);transform:scale(1.1)rotate(-3deg)}.course-card-badges-left{z-index:5;flex-wrap:wrap;gap:.4rem;display:flex;position:absolute;top:10px;left:10px}.completed-badge{color:#047857;-webkit-backdrop-filter:blur(10px);background:#10b98126;border:1px solid #10b98166;border-radius:20px;align-items:center;gap:4px;padding:4px 10px;font-size:.76rem;font-weight:700;display:inline-flex;box-shadow:0 4px 12px #0000000d}.teacher-mode .completed-badge{color:#34d399;background:#10b98140;border:1px solid #10b98173;box-shadow:0 4px 12px #0003}.course-actions{z-index:10;gap:.4rem;display:flex;position:absolute;top:10px;right:10px}.action-btn{background:var(--glass-bg);border:1px solid var(--glass-border);cursor:pointer;-webkit-backdrop-filter:blur(10px);width:32px;height:32px;color:var(--text-primary);border-radius:9px;justify-content:center;align-items:center;padding:0;transition:all .2s;display:flex}.action-btn.edit:hover{color:#93c5fd;background:#3b82f659;border-color:#3b82f699;transform:translateY(-1px)}.action-btn.delete:hover{color:#fca5a5;background:#ef444459;border-color:#ef444499;transform:translateY(-1px)}.course-card-content{flex-direction:column;flex:1;padding:1.25rem;display:flex}.course-card-title{color:var(--text-primary);margin:0 0 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#00000026}.glass-datetime-trigger-info{text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:.6rem;display:flex;overflow:hidden}.glass-datetime-trigger-icon{color:var(--cal-today-color,#0d9488);flex-shrink:0}.glass-datetime-popover{width:300px;box-shadow:var(--cal-shadow);color:var(--cal-text);font-family:var(--font-family,sans-serif);-webkit-backdrop-filter:blur(30px);border-radius:20px;padding:1.1rem;animation:.2s ease-out popoverFadeIn;background:var(--cal-bg)!important;border:1px solid var(--cal-border)!important}@keyframes popoverFadeIn{0%{opacity:0;transform:translateY(4px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.calendar-header{justify-content:space-between;align-items:center;margin-bottom:.85rem;display:flex}.calendar-month-year{color:var(--cal-text);font-size:.95rem;font-weight:700}.calendar-nav-btn{background:var(--cal-nav-bg);border:1px solid 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#0003}.student-avatar-sm{background:linear-gradient(135deg,#6366f1,#4f46e5);border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;font-size:.9rem;font-weight:600;display:flex;box-shadow:0 2px 5px #0003}.student-email{font-size:1rem;font-weight:500}.student-actions{gap:.5rem;display:flex}.assign-form{max-width:600px}.assign-row{grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1.5rem;display:grid}.assign-field label{color:#ffffffb3;margin-bottom:.5rem;font-size:.9rem;font-weight:500;display:block}.deadlines-section{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0f0a0573;border:1px solid #f59e0b40;border-radius:24px;margin-top:1.5rem;padding:1.5rem}.deadlines-section h4{color:#ffffffe6;margin-top:0;margin-bottom:1rem;font-size:1.1rem}.deadlines-list{flex-direction:column;gap:.75rem;display:flex}.deadline-item{background:#00000040;border:1px solid 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.25rem;font-size:1.1rem}.submission-course{color:#ffffff80;margin:0;font-size:.9rem}.separator{color:#ffffff4d;margin:0 .5rem}.submission-date{color:#fff6;background:#0003;border-radius:100px;padding:4px 10px;font-size:.85rem}.submission-content{white-space:pre-wrap;color:var(--text-primary);-webkit-backdrop-filter:blur(10px);background:#0f0a058c;border:1px solid #f59e0b40;border-radius:24px;margin-bottom:1.25rem;padding:1.25rem;font-size:.95rem;line-height:1.6}.submission-attachments h5{color:#fff9;margin-bottom:.75rem;font-size:.9rem;font-weight:500}.attachments-grid{flex-wrap:wrap;gap:.75rem;display:flex}.attachment-chip{color:#fffc;background:#ffffff0d;border:1px solid #ffffff1a;border-radius:8px;align-items:center;gap:.5rem;padding:6px 12px;font-size:.85rem;text-decoration:none;transition:all .2s;display:flex}.attachment-chip:hover{color:#fff;background:#ffffff1a;border-color:#fff3}@media 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